Hitachi RCI-1.0FSR Service Manual page 275

7 Servicing
RPK-FSR(H)M - Wall mounted
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For RPK-(2.0-4.0)FSRM
1 Remove the electrical box according to the "Removal electrical box cover" chapter.
2 Remove the cable band clamping wiring for the electronic expansion valve.
3 The rear pipe for the heat exchanger, the electronic expansion valve, and the piping at the inlet/outlet of the electronic
expansion valve are protected with butyl sheets. Remove butyl sheets covering the piping, the expansion valve coil
and the expansion valve body.
4 Rotate the expansion valve coil in the direction of the arrow (A) shown in the figure below. After releasing the detents
for the expansion valve coil from the projection portions of the expansion valve body, pull up the coil to remove it.
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N O T E
Take care not to twist the piping.
5 Insert the new expansion valve coil for replacement into the expansion valve body. Fit the projection portions into the
detents with the wiring outlet facing down.
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N O T E
The detents are located 90° apart in a circle and the projections are located 180° apart in a circle. Fit the projection portions into the
detents. If inserting the coil incorrectly, it may cause malfunction of the expansion valve coil.
6 After the work, protect the expansion valve coil with butyl sheets, mount the heat exchanger in the reverse procedure
and clamp the wirings for the expansion valve, the freeze protection thermistor and gas pipe thermistor with 1 cable
band.
New electronic expansion
valve coil for replacement
265 SMGB0137 rev.0 - 05/2021
Electrical expansion
valve coil
Projection portion
Detent of electronic
on valve body
expansion valve coil
Wiring outlet of expansion
valve coil
7
(A) rotation direction